Denny Hamlin, right, meets with crew chief Darian Grubb in the team garage during practice for the NASCAR Sprint Cup Series auto race Saturday, March 2, 2013, in Avondale, Ariz.(AP Photo/Ross D. Franklin)

Written by

Jeff Gluck
USA Today Sports

LAS VEGAS --A fired-up Denny Hamlin vowed not to pay his fine for criticizing the quality of NASCAR's Phoenix race last week and said he will no longer speak about any competition-related issues.
Hamlin was fined $25,000 on Thursday for saying the Gen 6 cars did not race as good as the Gen 5 cars. The Joe Gibbs Racing driver said it was an opinion â(euro) " and "it's not even a bad one!"
Hamlin, speaking after a morning test session at Las Vegas Motor Speedway, said he did not understand why NASCAR fined him for the comments, in which he compared the new Gen 6 cars to the previous model.
"This is the ...